Your warranty is through BigValueInc, not Canon USA. Their wording is incorrect, however they're a very solid seller. I think this would be an issue if the warranty was 2-3 years, but it's for one. In my experience, this camera is rock solid as far as reliability. If the camera does break, you have to send it to them, not to Canon USA. Although, I'm willing to wager you'd still get a warranty repair most of the time on the camera with a receipt from BigValueInc.
Going by the 5D Mark IIs we rent, the most expensive repair is about $300 bucks if a piece of electronics goes. We have yet to fix a 5D mark III, but I imagine they'd be about the same.
 OK, so I did more research:
From their "about" page: "We offer a one-year in-house warranty on imported goods at a nominal cost."
From their eBay ad: "Add warranty from $299.99"
Current BVI price $2886 plus $299 warranty equals $3185. Meanwhile B&H has it for $3299 including $146 of extra useable
accessories equals $3153 for the body. So where is the "good deal" at BigValueInc??
Sorry, but it is total BS in my book for them to post claims about warranty that are patently untrue. They'd lose their behinds if a class action were filed. LOL, I'm not going to do it since I didn't buy from them, but obviously their legal counsel didn't come from an Ivy League school...